You may not want your heloc tapped that long as the rate is generally higher on a heloc than it is on fixed mortgage rates. 

@Jacob BremerA high ARV rental property can be funded using a HELOC strategy, which can be used for down payment, rehab, or cash.

If you are looking for loans on real estate or a business lenders don’t necessarily care about the credit history of the LLC - they care about the performance of the asset and your creditworthiness since you will most likely have to sign personally.I have established multiple LLCs just days before closing on large loans for different assets, those particular entities barely existed and the banks did not care.If you are talking about pulling a business line of credit (like a HELOC, but against your business equity) then the banks like to see some history of revenue.

A second lien, heloc, or hard money loan 

I'm applying for a HELOC on my rehabbed house in Detroit (primary).

I tried to get a HELOC on my rental property, but the bank denied me for a low loan-to-value on the property.

Home Equity Line of Credit (HELOC): If you own other properties, you can tap into your home equity to fund your fix and flip, providing you with lower interest rates.5.

A HELOC may be an option but I'm full time real estate (no W2) and have a couple properties and my DTI is relatively high. 

HELOCs are NOT sensitive to the 10 year treasury.

Wells Fargo gave a HELOC for 30K.